How do tidal forces shape a planet's orbital evolution, especially for those in the habitable zone? A recently submitted ...

These linkups happen when several planets appear to line up in the night sky at once. Such parades are fairly common, ...

Mark your calendar so you can catch Mercury, Venus, Jupiter, Saturn, Neptune and Uranus in the sky at the same time.

But it’s not just looks. Rocky composition, general size, orbital behaviors—a lot of those qualities can be the same on both ...

David Boreanaz recalls Betty White shocking him with a risqué comment when they met on “Bones” Fed officials see inflation ...

A planetary parade of six planets is visible in the morning sky through August 20, with Mercury joining Venus, Jupiter, ...

Prior to flybys, scientists used mathematical laws and observation to determine the characteristics of the planets.

NASA’s James Webb Space Telescope finds TRAPPIST-1 d lacks an Earth-like atmosphere, narrowing the search for habitable planets.

While most of the planets will be visible to the naked eye, others will require special equipment to be spotted.